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Fascinating Silicone™ Chemistry Corner – Condensation Cure

Condensation heat cure systems for silicone polymers


Reaction: Condensation
Reactants/functionality: SiOH/SiH
Catalysts: Tin salts, titanium alkoxide
Stimulus for cure: Heat

Common applications:

Moldmaking, encapsulants, high-performance coatings, sealants, pressure-sensitive release coatings

Advantages

  • Cost.
  • Resistant to catalyst poisoning or substrate inhibition
  • Adhesion
  • Versatility

Disadvantages

  • Limited bath life
  • Tin effluent

Expand your understanding

Learn about:
One- vs. two-part systems
Peroxide cure
RTV moisture cure
Temperature-activated addition cure
Photo-initiated addition cure

Explore your material options

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